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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[DOCS-2392] Comment on: &quot;manual/reference/command/shardCollection.txt&quot;</title>
                <link>https://jira.mongodb.org/browse/DOCS-2392</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;p&gt;According to my tests on 2.4.8, the limit of numInitialChunks is actually 8192 * number of shards.&lt;/p&gt;
</description>
                <environment>&lt;br/&gt;
&lt;br/&gt;
*Location*: &lt;a href=&quot;http://docs.mongodb.org/manual/reference/command/shardCollection/&quot;&gt;http://docs.mongodb.org/manual/reference/command/shardCollection/&lt;/a&gt;&lt;br/&gt;
*User-Agent*: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36&lt;br/&gt;
*Screen Resolution*: 1440 x 900&lt;br/&gt;
*repo*: docs&lt;br/&gt;
*source*: reference/command/shardCollection&lt;br/&gt;
</environment>
        <key id="101878">DOCS-2392</key>
            <summary>Comment on: &quot;manual/reference/command/shardCollection.txt&quot;</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="1" iconUrl="https://jira.mongodb.org/images/icons/priorities/blocker.svg">Blocker - P1</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="9">Done</resolution>
                                        <assignee username="sam.kleinman">Sam Kleinman</assignee>
                                    <reporter username="thomas.rueckstiess@mongodb.com">Thomas Rueckstiess</reporter>
                        <labels>
                            <label>collector-298ba4e7</label>
                    </labels>
                <created>Wed, 11 Dec 2013 04:57:34 +0000</created>
                <updated>Tue, 11 Feb 2014 20:33:17 +0000</updated>
                            <resolved>Tue, 11 Feb 2014 20:32:59 +0000</resolved>
                                                    <fixVersion>v1.3.1</fixVersion>
                                    <component>manual</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="497334" author="xgen-internal-githook" created="Tue, 11 Feb 2014 20:33:17 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;tychoish&apos;, u&apos;name&apos;: u&apos;Sam Kleinman&apos;, u&apos;email&apos;: u&apos;samk@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-2392&quot; title=&quot;Comment on: &amp;quot;manual/reference/command/shardCollection.txt&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-2392&quot;&gt;&lt;del&gt;DOCS-2392&lt;/del&gt;&lt;/a&gt;: adding correct split limit to numInitialChunks&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/74e9fb60b520a3e35744e31dd5a6a3fc68eca85e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/74e9fb60b520a3e35744e31dd5a6a3fc68eca85e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="497332" author="xgen-internal-githook" created="Tue, 11 Feb 2014 20:32:56 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;tychoish&apos;, u&apos;name&apos;: u&apos;Sam Kleinman&apos;, u&apos;email&apos;: u&apos;samk@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-2392&quot; title=&quot;Comment on: &amp;quot;manual/reference/command/shardCollection.txt&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-2392&quot;&gt;&lt;del&gt;DOCS-2392&lt;/del&gt;&lt;/a&gt;: adding correct split limit to numInitialChunks&lt;br/&gt;
Branch: v2.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/90e5b5944f903edede5e0ee80c7434a1171ac1da&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/90e5b5944f903edede5e0ee80c7434a1171ac1da&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="470124" author="renctan" created="Thu, 12 Dec 2013 20:12:56 +0000"  >&lt;p&gt;I checked the code and it looks like Thomas is correct. It looks like we don&apos;t have any restrictions for numInitialChunks, but we do have a limit of 8192 split points for a single chunk. And that is what the limit the shardCollection command is hitting when it tries to split a chunk in a shard (Basically, the process is split into n shard chunks, move them to each shard and further split them).&lt;/p&gt;

&lt;p&gt;In summary, Thomas is correct.&lt;/p&gt;</comment>
                            <comment id="470093" author="samk" created="Thu, 12 Dec 2013 19:21:09 +0000"  >&lt;p&gt;I&apos;ve looked over the code and don&apos;t see anything that jumps out at me to support this change. I&apos;ve followed up with &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=renctan&quot; class=&quot;user-hover&quot; rel=&quot;renctan&quot;&gt;renctan&lt;/a&gt;, and he&apos;ll confirm. &lt;/p&gt;

&lt;p&gt;Cheers,&lt;br/&gt;
sam&lt;/p&gt;</comment>
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